Train controlling and stopping system.



Patented Ja11J19, 1915.

5 SHEETS-SHEET 1,

J. F. WEBB, JR. TRAIN CONTROLLING AND STOPPING SYSTEM. APPLIGATIQN FILEDJAN18,1912.

5 SHEETS-SHEET 2.

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'1 i ii 1 y C m i WITNESSES: m.- ;;1 INVENTOR J. F. WEBB, JR. TRAINCONTROLLING AND STOPPING SYSTEM.

APPLIGATIOIT FILED JAN.18,1912.

Patente d Jan. 19,1915

J. P.. WEBB, JR. TRAIN CONTROLLINGAND STOPPING SYSTEM.

APPLICATION F ILE D JAN.1 8 1 912'. Patented Jan. 19; 1915.

5 SHEETS-SHEET 4.

WITNESSES: INVENTOR J. P. WEBB, JR. TRAIN CONTROLLING AND STOPPINGSYSTEM.

5 APPLICATION FILED JAN. 18, 1912.

Patented Jan. 19, 1915.

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5 SEEETSSHEET 5.

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xv m A 1%.... ELUEHTTEB 3 UNITED $TATES PATNT OFFICE.

JEAN WEBB, 53., OF NEW YORK, N. Y., ASSIGNOR TO THE INTERNATIONAL SIGNALCOMFANY, INCORPORATED, (FORMERLY ELECTRIC SIGNAGRAPH &, SEMAPHORE (20.,

inconronArnng'or new YORK, 11. Y.

TRAIN, CONTROLLING- .AND STOPPING SYSTEM.

Application filedifanuary 12,1912. Seri'a'l'No. amass.

T 0 all who'in it may concern Be it known that I, JEAN F. Venn, J r.,residing at NeWYoI-k, in the county of New York and State of New York,have invented certain new and useful Improvements in Train Controllingand Stopping Systems, of

which the following is a specification.

Generally the invention includes a train carried, apparatus in which isan air valve that communicates with the train pipe of 'the air brakesystem and is normally held in its closed position by suitable devicesthat 1 along the right-of way. The train carried cooperate with thevalve stem, the holding devises being releasable by a plunger thatengages a fixed track stop or tripping ramp mechanism also includes anautomatic resetting device which, when operated hv a controlled trackfixture. resets the holding devices, thereby closing the air valvc andpreventing its further action. In practice the'controlled tracli fixtureis set a predetermined distance from the tripping ramp to reset the airvalve and its holding device almost instantly after the tripping; ramphas been-engaged by the plunger to release the holding devices. In thismanner. the application of the brakes. unless th crz-ntre'lled trackfixture he in its dangew position. does nrt take place. If thecontrolled track fixture he in its danger position. the re.- settingdevices do not come into action and after the fixed rampv is passed bythe rel asingplunger the air valve will remain open and permit theapplication of the brakes.

The inventicnalso includes a manually operative device that croperateswiththe resetting mechanism of the train carried fixture wherehv theengineer may reset the same fromthe cal). subject. howcvcrfito theaction of a speed controlled loci-I that prevents the operation of themanual resett ng device when the speed of the trainis ahovc apredetermined minimum. I

The invention fui'thernmre provides a svstein and apparatus embodyingthose novel details of construction. crunhination and arrangement ofpart all of which will he first fullv described and then he specificallypointed hut in the appended clai s, refcronce heing had to theHCCOQIYHJI'VIHQ drawings. in which g v i Figure 1. is a view showing theinvention in elevation. looking forward ti)" ward the pilot of thelocomotive. F ig. 2,.is a side elevation of one set of track mechanism.Fig.3, is a horizontal section on the line 3-3 of Fig. 4. Figs. 4:, 5,and 6, are

vertical cross sections on the lines 55 and 6-6 respectively of Fig. 3,looking in the direction of the arrow A.- Fig. 7 is a cross section onthe line 7 7 on Fig. 6. Fig.

8, is a cross section onthe line S'Son Figp 6. Fig. 9, 1s a detailsection on the line 9-9 of Fig. 1. Fig. 10. is-a cross section on theline 10-1O of Fig. 9. Fig. 11, is a side ele vation largelydiagrammatic, illustrating the speed controlled latch for the engineersreleasing rod, the direction of movement of the trainheing indicated hvthe arrow B. Fig. 12. is a detail view taken on the line 12 12 of Fig.11.

lnthe drawings like numerals and letters of reference indicate likeparts in all of the figures.

The mechanism in general includes a train carried apparatus. acontrolled track fixture to? resetting purposes. and a fixed trippingramp ad1acent to the track for tripping the air valve releasing plungerto release the holding device and permit the air valve to 1 open andthereby operate the brakes.

The train fixture embodies a mechanism inclosed in a suitahle housing 1.that is secured by suitable holts 2 beneath the butter heam adjacent tothe pilot 4 of the engine. Mounted within the forward projection of thehousing 1 is the oscillatahle shoe 'carrv-, ing shaft 6 that forms apart of the resetting mechanism; The construction otthe shaft auditsmounting is substantially the same as that disclosed in and forming thesubject-matter of my copending application.

filed on the eighteenth day of January, 1919. Serial No. 671860. and inthe present ap plication I make'no claim 7967' 8G, to such shaftconstruction, as the same per ac. constitutes no part of the'iresentinvention. The shaft is mounted to oscillate in plug hearings 7at each end of the housing est-ensirn 3. and between which hearings theshaft I? carries-two sleeves 8. each of which has a. plunger cr head 9at the end adjacentto the respective hearings 7. Each head 9 has aperipheral quarter circle groove-1O to receive the casing stop pin 11which limits the turning motion of the sleeve to approximately 00. Eachsleeve 8 is also provided trip bar or plunger,

with a longitudinal slot 19 terminating, adjacent to the. head 9, in acircumferential quarter-turn groove 13, in which the shaft pin 14-rides. The'torsion spring 15 encirclesthe sleeves 8 and, has its endsrespectively fitted into the recesses 16 of the respective heads 9. Pins17 prevent thebearings '1 from turning. The. resetting shoe- 18 isfitted onto the outer end of the-shaft 6, while a radial finger cam 19is secured on the other end of the shaft 6, the finger-cam 19 and shoe18'holding the bearings 7 in place in the housing part 5.

Mounted within the housing is an airoper'ated valve device whichcomprises a valve casin 20 that is bolted at 21 to the housing an hasaboss 22 which is provided with a chamber 23 into which the connection2d from the train pipe ofthe air brake system -(not shown) leads. Thechamber 23 has a valve seat 25 at its mouth, and the chamber is normallyclosed by the valve 26, whose stem :27 projects through the adjustingplug 28 to the outside-of the casing 20. The casing 20 has a dischargechamber 29 that delivers into the exhaust pipe 30.

Mounted in the housing 1 is .a main shaft 31 which supports the valveholding cam The cam 32 is keyed to the shaft 31to turn with it. The cam82 has a downward projection to be engaged by the mechanical hereinafterdescribed. The shaft 31- also. carries a locking cam 33 that has a latchrecess 34 to receive the spring latch bar 35. The latchde'vice includesa casing 36 into a"chamber 37 of which, the latch bar 35 projects. Thelatch bar 35 has a shoulder or disk'portion 38 within. the chamber,against which the spring '39 presses. The spring 39 also engages awasher &0 that is held in the casing 36, which in turn is secured. at 41to the main housing 1.

i2 is the resetting lever that is keyed to the shaft 31 and coiiperateswith the resetting cam 19 to restore theparts to their normalposition.

The housing 1 has inner bearinglugs l3 between which, on llI11I1n10l1S44', t118 plunger carrying casting 45 is secured. The casting 45comprises a main body having an offset bracket-like upper portion 46whose upper end is bifurcated ate? to permit operation of the holdingcam in the bifurcation. The main body portion is bored long tudinally asat 48 and the lower end of the bore is restricted and squared in crosssection as at 49. The valve releasingpl'unger 50, that cotiperates withthe valve holding camoperates in the bore lS-lfi), and it has its lowerportion 51 squared to work in'the squared bore part h the upper end ofwhich bore is is closed by a cap plate 52 that is removably held inplace by screws 53 to retain the washers 51 between which the com-Fpression spring 55, that holds the plunger. downwardly, "WO'I'liS.' Thelower washer a liabuts the upper-end of the squared plug portion '51.The squared portion 51 of the plunger 50on1y extends up to the washer 5L when the parts are in the-normal position shownin Fig. 6, and fromthereon up, the

cross sectionalconfiguration of theplung'er 50, is circular.

q Itwill beseen thatthe housing'1 has an I abutment 6 0 which forms astop to preventmovement of the casting 45, on its fulcrums 41, in onedirection. In order to assist gravity in holding the casting 45 in itsnormal vertical position with its upper part 4.6 againstthe'abutment'60, a spring (51 is attached at 62-63 to the housing 1 andcasting 45 respectively.

with the train pipe (not shown). The bottom of the housing 1 is open at65 to permit the casting to swing from the full line position in F g. (5to that shown'in dotted lines in the same figure, when the train ismoving backward.

"The arrows B in the drawings, indicate the normal direction of movementof the train, namely,the forward movement.

The stationary track fixturesor ramps 66' are located at any desiredplacealong the rightof way, adjacent to the track 70. .-\d-. jacentramps are usually'spaced a predetermined distance apart. Each ramp 6Gincludes a'base 67 that is secured at (38 to the ties G9 and on whichbase the ramp proper 66 is fastened.

The controlled track fixtures 71 may be of any approved type and operatein any do sired manner so long as they include an arm '72 thatnormallyprojects into the path 'of' the shoe 18. which arm is movableout of such path by suitable ineehanical devices, under suitablecontrol, when it is desired to stop the'train. I prefer to employ such amechanism as is shown in and forms the subject-matter of my applicationSerial No.

filed May a, 1911 Operation: In tl1 d swings Figs. 1, 5

and 6, the full line d Jgnate the normal position of the part wl .11parts are shown .in their abnormal position by dottrd lines.

The direction of traffic is shown by the arrows B in these figures.Whenthe train is runnin between ramps, the casting 45 that carries thereleasing plunger 51, hangs ver-' tically; the contact shoe 18 ismaintained in its vertical position by the balancing spring l5. When thetrain running in the direction of traffic reaches a trip-ping ramp 56,the enlarged portion'73 of the releasing p-l-ungeafitengages thetripping ramp and rides, up vertically over' the same. The backwardpressure onthe plunger or the.

' pressure acting against the line of travel,

istakengup by the trunnions lat and the thickened housing sides, orabutment 60, together with the lugs 9&3 forming an eXten sion thereof:As the plunger 51 rises, itstop end engages the bottom projection ofthevalve closing and holding cam 32 and pushes it upwardly 'therebyreleasing the valve stem 27 and the valve 26, whereupon the pressure ofthe air in the train line pipe unseats the valve -26 which allows theair to escape through the outletor exhaust pipe 30, thereby reducing,the pressure in the train line pipe and-sets the triple valves of theair brake system into action to stop the train. If the contact arm- 72of the 'controlled track fixture is in the. stop position, it will notengage'the shoe lS and the air continues to escape through the valve 26until the train pipe pressure has been re- .30 duced to predeterminedpoint, whereupon the valve 26 will be reseated by the spring thatsurrounds its stem 27 the pressure can not be again increased by theengineer until v v the train has been stopped and the contact shoe 18oscillated by hand to reset the valve closing cam to its normalposition. If the contact.- arm 72 be in'its safe position, it merelyoscillates the contact shoe 18 backviardly, thereby causing the cam 19to en- 40 gage the resetting lever 42 and thus push it downwardly. Thisaction on the lever 42 turns the shaft 31 to restore the holding cam toits normal position and thereby brings it into its valve closingposition, best; 45 shown iii-full lines in Fig. 6. Owing to theproximity of the controlled track fixture to the tripping ramp theunseating of the. valve 26 is followed-so closely by the reseatingthereof when the controlled" track fixturev is in its safe position,that not enough air escapes "from the train line'pipe tocause anappreciable reduction o't'the air pressure in thetrain. line pipe, andthus the triple' valves of the air brake system are not brought intoaction to stop the train.

ln order that the engineer may reset the mechanism after the air valvehas been tripped andfivhen the train is under control, I provide aresett ng rod 7t that is adapted I to engage the projecting arm T5 ofthe locking cam By pulling on the rod Tl the shaft f-ll' can be turnedback to restore the pa ts to their set or-norinal position. In orderthat the rod it. may not be pulled sa '-3 vvhen the train -isrunningbclo iv a predewvardly and upwardly in a curve whose cenp'ressureto actuate the triple valves of the fductbtl vvi'll'escapeand thesameaction on as it passes the same will be stopped.

termined speed, a latchdevice 76 is .provided that engages a notch Winthe rod Yet when the latch device T6is held up by the gov rnor 78. Whenthe vehicle is running below a predtltermined speed, the goveriiorin 78vvill allow the latch 76 to drop out of the notch 77 andperrnit the rodH to-be operated. The governor 78. may be driven inv any suitable Wayfrom any moving part'olf the vehicle and a further description thereofis thought to be unnecessary. The rod 74: may be restored to its latchedposition when released by a spring 79. p l'V hen the engine is backingin a direct. I opposite'to the direction of traliic, the re- 3a leasingplunger 51 will, of course, engage the tripping ramps 66,- but, owingtothe fact t hat the casting $5 is fitted at its upper end on thetrunnions 4-4:, it is free to swing bapkwardly and the plunger 51 willnot be 35 raised vertically but Will cause the casting 4h) to swing tothe dotted line position. indicated in Fig. 6, thus carrying its partsforter is in the center of the trunnions 4-4:; hence the top of'theplunger 51 will not en gage the lower projection of the holding cam 32and the valve 26 will not be allected. After the ramp has been passed.grar-Jity assisted by the spring will immediately store the castingBS-and its carried parts to their normal positions.

Fromthe foregoing, it will be observed that should the casting 4:5 andits carried partsbecome-broken and thereby drop away from the housing,the flexible connection 58 vv"l break, thus reducing the train pipe airbralte' systemandsetthebrakes. Should the plunger 51 break oil, the airfrom the 185 the air brake system above referred to will take place.Should the arm 72 of, the controlled track' stop become broken, thetrain In this form of my invention, the contact shoe'18 oscillates in av rtical plane within the-lineof clearance of the butter beam so thatunintentional oscillation is practically eliminated. b-en the air valveis closed, or in its normal position, any oscillationof the shoe 18 hasno effect whatever upon ,it and when the air valve is open. no re erseoscillation, 2'. oscillation in a direction opposite to the normalmovement 12!) for the purpose. can effect the-closing ot' the air valve.Again, only a normal oscillation of the shoe 18 can affect the valve andthen only after-the valve has'been opened by the action of the re easingplunger. and before it is again closed by the spring that is mounted onthe air valve stem '27.

When anengine is running backwardly and pulling a train in the directionof" tral'lic, protection is secured by placing the lac train carrlednxtures on both the right and left ends of thebutler beam, as will beclear to .thoseskilled in the art, and in view of the fact that suchduplication is a mere mechanical expedient, illustration thereof isthought to be unnecessary. I

In this specification and in the following claims, the word train is tobe considered in its broadest aspectas meaning any vehicle running onthe right'of way, and I do not wish to be understood, as limiting. bythe' use of'that term, the use of my inventionon' a train composed of anengine and cars.

From the foregoing description, taken in ings, it is believed that thecomplete con struction, operation and advantages of my invention will bereadily understood by those skilled in the art to which itappertains.

That I claim is:

1. In a device of the class described, a

when said holdingmeans has been moved toth'e' valve releasing position,and independent track promotions ior engagmg said plunger and foroperating said os'ciilatable shaft.

a sup ort, an'air operated valve connectible to the train pipe of an airbrake system,

-mea ns,f or holding said valve closed to maintain the train pipeairpressure under normal conditions. plunger operated means forreleasing said holding means to perm? t said 0 valve to open, a.resetting devi'e including an oscillatable shaft and cooperative connections between said oscillat'able shaft and said valve holding meansfor restoring said valve holding means to its normal position,

and separate track apparatus for operating grespectively arid plungeroperated releasing means and said oscillatable shalt.

3. In an apparatus of tie class described.

a support, an air operated valve connectible to the train pipe of an airbrake system,

means for holding said valve closed to maintain the train pipe airpressure under normal conditions. plunger operated means for releasingsaid holding means to permit said valve to open,a resettingdev1ce-1nc1udmg connection with the accompanying draw means for 2. Ir?an apparatus of the classdescribed,

.to the train pipe of an air brake train is moved in a directionopposite to the normal line of travel.

4. In an apparatus of the class described,

a support, an air operated valve connectible to the train pipe of an airbrake system, means for holding said valve closedto maintain thetrainpipe air pressure under nor- 30 mal conditions, plunger operatedmeans for releasing said holding means to permit said valve to open, aresetting-device including an oscillatable shaft and cooperativeconnections between said oscillatable shaft and 35 said valve holdingmeans for restoring said valve holding means. to its normal position,separate track apparatus for operating respectively said plungeroperated releasing means and said oscillatable shaft, and a manuallyoperated device cooperatively connected with said holding means forresetting the same.

5. In an apparatus of the class described, a support, an air operatedvalve connectible to the train pipe of an air brake system, iolding saidvalve closed to maintain the train pipe air pressure under normalconditions, plunger oper "eil means for releasing said holding means toperm t said "valve to open, a resetting device including an oscillatableshaft and cooperative connections between said osc lla't ale shaft andsaidvalve holding means for restoring said valve holding means to itsnormal position, separate traclr ap ratus for operating respectivelysaid plunger operated releas'- ing means and said oscillatable shaft,said releasing means being inoperative when the train is moved in adirection opposite to the normal line of travel, and a manually operateddevice cooperatively connected with said holding means for resetting thesame.

'6. In an appara us of the c s described, a support, an air operated"alve conncc means for holdings "d valve closed to maintain the trainpipe air pres under normal conditions, plunger operated means forleasing said holding means to pe nit said valve to open, a resettingdevice including an oscillatable shaft and inoperative coin nectionsbetween said a 'i itable sh ft and said valve holding 1n n; n. restoringsaid valve holding means :i ii normal position, separate track apparatusfor O] )81'fitll1g l6 spectively said plunger p rated releasing meansand said oscillatable shaft and a speed controlled manually operatablerese ting device cooperatively connected with holding means may berestored to its normal position when;the- ""speed is below a predetermined degree. d p

'7. In an apparatus of the class described,

Ha support, an air operatedvalve connectible to the train pipe of an airbrake system, means for holding said valve closed to maintain the trainpipe air pressure under normal conditions, plunger operated means forreleasing said holding means to permit said valve to open; a'resettingdevice including an oscillat-ableshaft and cooperative connectionsbetween said oscillatable shaft and said valve holding means forrestoring said valve holding means to its normal position,

separate track apparatus for operating renormal-line of travel, and aspeed controlled 'Lj'manually operatable resetting device couoperativelyconnected with said holding. .means in virtue of wh ch said holding""meansimay be restored to its normal positermined degree.

tion when the speed is 8. In .a system of the class described, anapparatus which includes a support, an air valve connectible'to thetrain pipe of an air brake system and mounted on said support, a mainshaft, a holding cam on said shaft for holdingsaid valve closed, areleasing plunger for engaging said holding cam to release .the sameandpermit said valve to open, a'track ramp for operating said plunger, aresetting leveron said shaft, an osoil latable shaft, a cam on saidoscillata'ble shaft for engaging said resetting lever when said holdingmeans has been released, and means for oscillating said shaft to elfectsaid resetting.

-9.'Ina system of the class described, a train apparatus including asupport, an air Valve mounted in said support and con nectible to thetrain pipe of an air brake system, a main shaft mounted in said support,a valve holding cam on said main shaft for normally holding said valveclosed, a plunger carrier held by said support, a releasing plungermounted in said carrier, said releasing plunger having an air duct,means for effecting communication between said air' duct and the trainpipe of the air brake system at all times.

below a predeinunication between said air duct and the train pipe of theair brake system at all times, a track ramp for moving said plunger whensaid support is carriedin onedirection, and means for holding saidplunger carrier to yield when said support is carried in an oppositedirection to thereby render said plunger inoperative when engaging saidtrack ramp in backing.

11. In a system of the class described, train apparatus including asupport, an air valve mounted in said support and connectible to thetrain pipe of an air brake system, a main shaft mounted in said support,a valve holding cam on said ma n shaft for normally holding said valve c.l a plunger carrier, a releasing piling-r mounted in said carrier,said'releasiiig plunger, having an air duct, means for ett'ectingcommunication between said air duct. and the train pipe of the air brakesystem at all times, atrack ramp for moving said plunger when saidsupport-is carried in onedirection, means forholding said plungercarrier to yield when said support is carried in an opposite directionto therebyirender sad plunger inoperative when engaging said track rampin backing, and means for resett'ng said holding cam after it has beenreleased.

12.'In a system of the class described, train apparatus including asupport, an air valve mounted in said support and connectible to thetrain pipe of an air, brake system, a main shaft mounted in saidsupport, a valveholding cam on said main shaft for normally holding saidvalve closed, a plungercarrier, a releasing plunger mounted in saidcarrier, said releasing plunger having an airduct, means for effectingcommnnication between said air duct and the train pipe of the air brakesystem at all times, a track ramp "for moving said plunresetting leveron said main shaft. a balanced oscillatable shaft sustained bv saidsupport, and normally disconnected fromsaid resetting lever, a cam on sad oscillatable shaft to engage said resetting lever when said hold ngcam is eleased.

13. In a system of the class described, train apparatus including asupport, an air valve mounted in said support and conneotible to thetrain pipe of an air brake system, a main shaft mounted in said supporta valveholding cam on said main shaft 55 ually operated for normallyholding said valve closed, aplunger corner, a releasing plunger mount--ed in said carrier, said releasing plunger effecting eomtion; betweensaid air duct and the train pipe of the air brake system at all times, a

ha ring an air duct, means-for munication between said air duct and thetrain pipe of the air brake system at all times, a traclr ramp formoving said )lnnger when said support is carried in one direotion. andmeans for holding said carrier-Ito 10 yield whensaid support is moved inan op-;v

posite direction to thereby render said plungerinoperative ivhen'engaging said track ramp in backing, means-tor resetting said holdingcam after it has heen'released, said last named means including aresetting lever on said main shaft, a-"balaneed oseillateble shaftsustained by said support, and non mally disconnected from saidresetting lever, a cam on saidoscillatable shaft to en gage saidresetting lever he said holding d osclllatable cam is released, a shoeon shaft and a track fixture oooperative'with said shoe tooscillate thesame and thereby ,ni'ove said resetting cam to effect theireset tingoperation.

let. In a system of the class described,

train apparatus including a support, anair valve mounted in saidvsupport and connectiljle .to the tr'ain pipe of an air brake system, a

main shaft mounted in said support, a valve holding cam on said mainshaft for normally holding said valve closed, a plunger carrier, areleasing plunger mounted 111 said carrier. said releasing plungerhaving anauduet,

means for effecting communication between said air duct and the trainpipe of. the air system, a main shalt-mounted in said sup- .port, avalve holding cam on said-main brake system at all times, a track rampfor moving said plunger when said'support carried in one direction, andmeans for-hold '40 ing said plunger carrier to yield \vhen'said after ithas been released. said lastnamed means including a resettingever onsand main shaft, abalanced oscilla-table shaftsustained by said supportand normally dis-- connected from said resetting lever, a cam on saidoscillatable shaft to engage said resetting lever when said holding camis re leased. a locking cam on said mam shalt, a latch for engaging saidlocking cam to hold sai d sha it from accidental turning, and a mantoring device coiiperatlve with the aforesaid parts for eil'ecting therestoration of said holding cam independently of said osclllatahleshaft.

15. In a system of the class described,

train apparatus including a support, an air Valve mounted in saidsupport and con11ect1- ble to the train pipe of an air brake system, amain shaft mounted in said support, a valve holding cam on said mamshaft for normally h'oldin said valve closed, a plunger carrier, a reeasing plunger mounted in said carrier, said releasing plunger having anair duct, means for effecting communicayield when said support is.carried in anopposite direction to the'rebyrender said plungerinoperative when engaging said track ramp in backin means for reset tingsaid holding cam after it has been re- I leased, said last named meansincluding a resetting lever on said main shaft, a balanced .oscillatableshaft sustained by said support, and normally disconnected from "saidresettinglever, a cam onsaid oscillataQ ,aa sai rese in ever \v ien blesh ft to eng ge d tt g l 1 said holdmgcamis released, a shoeon' saidoscillatable shaft and a track hxture cooperative with saidshoe tooscillate the same and thereby move 'saidresetting cam to effect theresetting OPGHIUOD, a locking cam on saidamain shaft, a latch, forengaging said locking cam. to hold said shaft from accidental'turning,and a 'manually operated restoringdcrice' cooperative with theat'o'resaid parts-for efl'ectingthe restoration of said holding camindependently of said'oscillatahle 'shaft'.

16. In a system of the ,class.' described. train apparatus including asupport, an-air valveinounted in said support and conn'ccti'b-le tothetrain pipeol. an air brakeger having an air-duct, means fore-{lootingeommunication between said air duct and the tram pipe oi the a r brakesystem at all times, a'traek ran'ip formoving said plunger e when saidsupport is carried inone direction, and means for holding said plungerto 7 yield when moved in an oppositedirection 'to thereby render saidplunger ino -ier'ative when engaging. said track ramp inf backing, meansfor resetting said holding cam after it has been released, said lastnamed means including a resetting lever on said main shaft, a lmlancedoscilhitable shaft sustained-by said support, and normallv dis-.connectedirom said resetting lever. a am on said oscillatable shaft toengage said r'esetting lever when/said holding cam is re leased, 'alocking cam on said main shaft. a latch for engaging saidlocking cam tohold said shaft from accidental turning. and a manually operatedrestoring device cooperative with the aforesaid parts for cll'ccting therestoration of said holding means 1nabove predetermined speeds.

p rative ;When engaging 17. In a system of the class described,

train apparatus including a support, an air vali'e mounted in saidsupport and connectible to the train pipe of an air brake system, a mainshaft mounted in said support, a valve holding cam on said main shaftfor normally holding said'valve closed, a plunger carrier, a'releasingplunger mounted in said carrier, said releasing plunger haying an airduct, means for effecting communication between said air duct and thetrain pipe of the air brake system at all times, a track ramp for movingger when said support is carried rection, and means for holding gercarrier to yield when nioved posits direction to thereby render n onediiid plunin the 0psaid plunsaid itracl: ramp in hacking, means forresetting'sai d holding cam after it has been released, said last namedmeans including a resetting lever on said main shaft, a balancedoscillatable shaft sustained by said support, and normally disdonnectedfrom said resetting lever, a cam on said cscillatahle shaft to engage'said leased, a shoe on said oscillatable shaft and a track fixturecotiperative with said shoe to (:scillatethe same and thereby move said[resetting cam .to effect the resetting operation,- a locking cam onsaid main shaft,

a latch for engaging said locking cam to holdsaid shaft from accidentalturning,

a manually operated restoring device cooperative with theaforesaid partsfor effecting the restoration of said holding cam independently of saidoscillatable shaft, and

- a speed .goxerned latch for said last named restoring device to holdthe same inoperatii 'e above predeternnned speeds.

18. In asystem of the class described, an

apparatus including an air ralie, means including-a shaft and an arm toengage the valve stem forhclding said valve closed, a

device including a l'eCipl'OCt lle member to push said arm out of thevalve stem en-' gaging posit on for releasing said holding means topermit id valve to open. inechan;

' cal means inclio mg a second. shaft normally dis onnected from saidfirst shaft and a mechanical connecting means for operati'velyconnecting said shafts too l er after said valve has been released forreset-ting said holding means and thereijiy reelising said 'alre, meansfor holding said hol: means from 'cidental n'nspl tract; obstructionsfor first actuati. leasing means and then actuating setting means.

. 19.1 1 appar said vretins of the alas-s described.

said plunleased, and means for oscillating said shaft to effectsaldresetting.

ger releases sa d llt'lllilil' an air operated valve connectible closedto mainsure under nora'ated means fry H i eans to permit said an e 1open, a r tting device including airtsciilatahle shalt and cotiperativeconnectir-ns between said oscillatable shaft and said valve holdingmeans for restoring said valve holding IiiCitTlS to its normal position,and means for holding said holding means from accidental displacement. v

20. In a S '5telli of the class described, a train carried ap 'iaratus'Wlll includes a support, an air valve connect c to the train pipe of anair brake s n. and mounted on said support, maii t, a holding cam onsaid shaft for holding .aid mire closed,

\ and means for holding said holding means from accidental displacement,a releasing an air in system,-

open, a track ramp for operating said plunf ger, a resetting 1 (er onsaid shaft, an oscillatahl'e shaft, a cam on sa d osc1llata'ole shaftfor engaging said resetting lever when said, holdin means has been re-214111 a systei'n of. the class described, a train carried apparatusincluding a support, anair ralve mounted in said support andci'nnectihle-to the air pipe of an air.

brake system, a valve holding member mounted in said support, a plungercarrier pivoted in said support to swing in-one di-- l ection only, aplunger operating in said carrier to engage and release said holdingniember when said plunger is'elevated'and when said carrier is in voneposition, thereby permitting operation of said. valve substantially asshown and described;

In a system of the class described. a M i d maparatus including asupport, an air ralve inounted in said support and connectible to thetrain pipe of an air make system, a val-re holding member lll lllilltlilin said support, a plunger carrier pivoted in said support to swinginone diion only. a plunger .:perating in said o i'cr when er to on 'eand release said lwlding' p and conn'ectible to the air pipe of an airbralge system, a valve holding member mounted in said support,alpliinger carrier pivoted in said support to swing in one direc'tiononly, a plunger operating in said carrier to engage and release saidholding member vvhen said plunger is elevated and when said carrier isin one position, thereby perinitiing operation of said valve, :1 trackramp for elevating said plunger when the said apparatus is moving in thedirection of travel and-to swing said carrier on its pivot vvhen theapparatus is moving in the oppo site direction. i i

24. In a system of the class described, a train carried apparatusincluding a support, an air valve mounted in said support andconnectible to the air pipe of an airbrake system, a valve holdingmember mounted in said support, tt'plllllgfil'-(It1l'l'l81 pivoted in asaid support to swing a plunger operating iii said carrier to engagewhen said is elevated and when said carrier in .one direction only,

and release said holding member plunger V is in one position, therebypermitting operation of said valve, a track ramp for elevating saidplunger \vlien the'said .apparatus is moving in the direction of traveland to swing said carrier on its pivot when tlie appai'atus is moving inthe opposite di-- rection, and a resetting shaft cooperatively connectedwith said holding member; to reset the same after saidplunger hasreleased said holding member, and means for operating said resettingshaft to cause'it to perform its functions,

25. In a system of the class described, a

train apparatus including a support, an air valve mounted in saidsupport and connectible to the train pipe; of an air brakev system, amain shaft mounted in said support, a valve holding cam on said mainshaft for normally holding said valve closed, a plunger carrier held bysaid support, a re leasing plunger mounted insaidcarrier. said eleasingplunger having an air duct,'-mean's for efiecting, communicationbetween" said air duct and the train pipe of the air brake svstem at alltimes, and other means for holding said holding cam from accidentaldisplacement.

26. In a svs'tem train carried apparatus comprising a support. an airvalve mounted in said support and connectible with-the train pipe of anair brake systenna holding cam pivoted in said support for cooperatingwith said valve to hold the same normally closed, a plunger carrierpivoted in said support, a plunger mounted in said plungei' carrier tocooper ate with said holding cam to effect the release of said cam whensaid plunger is elevated, means continuously tendingto depress saidplunger, said plunger having an lllli "ress said )lui'i er. means liniiof the. class described, a

to hold the same nor-mall closed,'a

air duct and connections between said air duct and the trai p pe of theair brake system.

27. In a system of the cla described, a

train carried apparatus ci'niiprising'a sup operativelv connected \vithsaid holding cam to move with it, a balanced shaft, amember on saidbalanced shaft to' engage said resetting lever when said resetting leveris out of its normal position to reset the parts.

28. In a system of the class described, a

traiiicarried apparatus con'i rising a sup po rt, an air valve mountedin said support and connectible With the train pipe of an air brakesystem. a -holdin cam pivoted in said support for coiiperatng with saidvalve to hold the same normally closed, a plunger carrier pivoted insaid su per-ma plunger mounted in said plunger carrierto coop erateWith-said holding cam to etl'ectthe release-of said cam vvhen saidplunger is elevated, means continuously tend" to deingthe swingingmovement of said plunger carrier in one direction only, a resettinglever .cooperativelv connected \vithsaid holding cam to more \vitl it. abalanced shaft, a inemlrir on 'saidba'lanced shaft to. engage saidresetting lever when said resetting lever out of its normal pOSllLlOH toreset the parts. and

a manually opera able speed controlled resetting'device operative belowa predetermined speed and "cooperatively connected with said holding camfor resettingthe same.

29. In a svstem of the class descril'ied, a train carried apparatuscomprising a support, an air valve mounted in said support andconnectible with the train pipe or an air brake system. a holdi 'ig campivoted in said support for coi'iperating with said valve plungercarrier pivoted in said support. a plunger mounted in said plungercarrierto cooperate with said holding cam to, etl'ect the re lease ofsaid cam when said plunger is elevated, means continuously tending todepress said' plunger, means limiting the swin'ging'movement of saidplunger carrier in one direction onlv, a resettinglever cooperativelyconnected with said holding cam to move With it, a balanced shaft, amember with said holding cam for resetting the' same, and meanspreventing the accidental displacement of said holding cam.

JEAN F. WEBB, JR. Witnesses:

JEAN F. WEBB, Sn, LORENZO E. TRIPLER.

